16919073 has 6 divisors (see below), whose sum is σ = 24438674. Its totient is φ = 11279376.

The previous prime is 16919069. The next prime is 16919083. The reversal of 16919073 is 37091961.

It can be written as a sum of positive squares in only one way, i.e., 16916769 + 2304 = 4113^2 + 48^2 .

It is not a de Polignac number, because 16919073 - 2² = 16919069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16919033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 939940 + ... + 939957.

Almost surely, 2^16919073 is an apocalyptic number.

It is an amenable number.

16919073 is a deficient number, since it is larger than the sum of its proper divisors (7519601).

16919073 is a wasteful number, since it uses less digits than its factorization.

16919073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879903 (or 1879900 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 16919073 is about 4113.2800779913. The cubic root of 16919073 is about 256.7194979420.

The spelling of 16919073 in words is "sixteen million, nine hundred nineteen thousand, seventy-three".